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Code P1260

Symptoms

• Reduced engine power

• Check Engine Light illuminated

• Poor acceleration

Common Causes

• Faulty boost pressure sensor

• Malfunctioning wastegate actuator

• Vacuum leak in the boost control system

Glossary

Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.

Wastegate: A valve that controls the flow of exhaust gases to the turbocharger's turbine.

Related Codes

• P0234

• P0299

Official description

Turbocharger/Supercharger Boost Control Cut Off (Bank 1)

Laymans terms

This code means that the car's computer has turned off the turbo boost because it thinks something might be wrong. It's like when a video game pauses because it detects a problem.

Explanation

The engine control module (ECM) has detected an issue with the boost control system, causing it to cut off the turbocharger or supercharger boost to prevent damage.

Technical description

The P1260 code indicates that the ECM has detected a malfunction in the turbocharger or supercharger boost control system on bank 1. This could be due to a variety of issues such as a faulty boost pressure sensor, wastegate actuator, or a vacuum leak. The ECM disables the boost to protect the engine from potential damage.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the boost pressure sensor and wiring.

• Check the wastegate actuator for proper operation.

Repair procedures

• Replace the boost pressure sensor if faulty.

• Repair or replace the wastegate actuator.

• Fix any vacuum leaks in the boost control system.

Tools required

• OBD-II scanner

• Multimeter

• Vacuum gauge

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• BMW 3 Series

Preventive measures

• Regularly inspect turbocharger components.

• Ensure proper maintenance of vacuum lines.

• Use high-quality fuel to prevent deposits.

Error code type

Engine Performance

User experience recommendations

• Avoid heavy acceleration until repaired.

• Have the vehicle inspected by a professional.

• Monitor for any new symptoms.

Warranty information

Check with the vehicle manufacturer for warranty coverage on turbocharger components.

Historical data

P1260 is a relatively common code for vehicles with turbocharged engines, often related to boost control issues.

Urgency level

Moderate – It should be addressed soon to prevent engine damage, but the vehicle is likely still drivable.

Legal and safety notice

Driving with a malfunctioning turbocharger can lead to increased emissions and potential engine damage.

Testing conditions

• Engine at operating temperature

• Vehicle under load

Component location

The turbocharger and its components are typically located near the exhaust manifold in the engine bay.

FAQs

Q: Can I drive with a P1260 code?
A: It's possible to drive, but it's not recommended as it may cause further damage.

Q: What happens if I ignore the P1260 code?
A: Ignoring the code can lead to reduced engine performance and potential engine damage over time.

Last updated: Jan 16, 2026 • Source: internal database
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